(China (Mainland))
Product Summary
The W681308DG is an USB audio controller from Nuvoton integrates fast 8051 microcontroller unit, universal serial bus 2.0 full speed compliant controller with PHY, 16 bit high quality analog to digital converter/digital to analog converter. The W681308DG includes joint test access group in circuit emulation interface and can handle customer programs such as keypad scan, LCD control, caller list download, and USB CODEC control among other features. The W681308DG provides highest integration and low BOM cost solution with 8051-based development paltform for USB audio peripherals and USB VoIP devices such as Skype, other IM and SIP-based application.
Parametrics
W681308DG absolute maximum ratings: (1)Junction temperature: 150℃; (2)Storage temperature range: -65 to 150℃; (3)Lead temperature: 300℃; (4)LQFP-48 thermal resistance, typical: 76℃/W; (5)Voltage applied to any pin: (Vss-0.3) to (Vdd+0.3) V; (6)Input current applied to any digital input pin: ±10mA; (7)ESD: 2000V; (8)VDD-VSS: -0.5 to 3.63 V; (9)VDDL-VSS: -0.5 to +1.98 V; (10)Power dissipation: 0.5Watt.
Features
W681308DG features: (1)Embedded 12/24/48 MHz turbo 8051 MCU with 4 clocks per machine cycle; (2)1KB system RAM, 8KB OTP ROM; (3)256 byte internal RAM; (4)Power on reset circuit; (5)Software idle mode; (6)In circuit emulation(ICE)through JTAG interface.
Diagrams
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